Runners ask a lot of their luggage. Travel bags must be versatile enough to keep up with our active itineraries. Gym bags should keep our gear organized (shoes stowed separately, thank you) so we can focus on running. Here, seven bags that meet these demands--and more.

LONG HAULERYou've got your dirty running shoes, damp tank top, and a brand-new Nano. No worries, the OGIO LAYOVER TRAVEL BAG ($179) has a compartment for each. This spacious, wheeled duffel features two large internal mesh pockets, compression straps for cinching down a week's worth of running outfits (plus clothes to see the sights in), and three external pockets that provide easy access to passports, keys, and race packets. On the return flight, you can take advantage of the bag's expansion zipper to fit all of your souvenirs and race schwag.ogio.com

QUICK-CHANGE ARTISTFor runners tackling a life-list race like, say, the Great Wall Marathon, the versatile OSPREY MERIDIAN 22" ($299) helps you (or at least your gear) arrive intact. The bag wheels along via a retractable handle, or it can strap to your shoulders as a backpack with a supercomfy hipbelt. Once you're checked into the hotel, you can zip off the daypack, which is roomy enough for a few changes of clothes (with a mesh pocket to stash wet, stinky items). This clever trick also lets the Meridian meet strict airplane carry-on requirements.ospreypacks.com

FREQUENT TRAVELERThe JANSPORT 20" WHEELED DUFFEL ($150) is made for quick changes on the go. It's small enough to roll into a bathroom stall, but still has enough space for your race-day outfit, warmup sweats, toiletries, and some extra outfits for celebrating that PR. It also has a small accessory pocket for quick-access items like passports. The Jansport's rugged corner-mounted wheels and edge bumpers allow type-A runners to sprint to the airport, throw the bag in the overhead, and make it back to the office by the boss's 8 a.m. meeting.jansport.com

GYM BAGS

CARRYALLThe LULULEMON RETRO GROOVE BAG ($98) is partly a nod to the running-heyday '70s and partly a workhorse for modern-day demands. The bag holds 50 pounds of stuff, making it ideal for runners who like to shed layers as they go. Inside is a removable, washable pouch that holds everything from sneakers to sports bras, and a neoprene pocket that's just right for a laptop.lululemon.com

BARE NECESSITYThe compact METALLIC DUFFEL ($40) from Adidas is so stylish you won't mind leaving it out in the office as a subtle reminder of your next workout. At 15 inches long and eight inches wide, the bag is just big enough for shoes, shower stuff, and running clothes. The inside pocket can hold keys and a wallet, while the external pouch can fit an iPhone.adidas.com

DAY RUNNERIf you have a full day planned--errands, run, and dinner with friends--the PUMA TRAINING SPORTS BAG ($55) has you covered. You can put your shoes in the bottom zip pocket, your training gear in one of the two side zip pockets, and your work stuff in the four pouches inside. And you still have a spacious main compartment for everything else, plus a choice of shoulder strap or handles.puma.com

THE TRANSFORMERIn the what-will-they-think-of-next category comes the NIKE PINNACLE PERFORMANCE RUNNING BACK PACK ($90). It can serve as a gym bag, a companion for the road and trail, or your ticket to the tech convention. First, it adjusts eight different ways for a custom fit and has reflective materials all around. Inside you'll find a separated shoe area, a laptop sleeve, and an insulated pocket. Finally, the backpack features a removable rain cover and a spot for a 70-ounce hydration reservoir, if you decide to start running to work.nike.com

Have an item that must be in your bag when you travel? Tell us in the comments below.

Security screeners may suspect you're a baton-twirler when they see the TIGER TAIL ($25) in your bag. In actuality, this portable foam roller cheers up sore postrun muscles.tigertailusa.com

The salt and mineral blend in the ENDURASOAK RECOVERY BATH SALTS ($9) can help you deal with post-run inflammation and muscle fatigue. Now all you need is a hotel room with a big tub.oasisrecoverysystems.com

The 4x optical zoom on the compact CANON POWERSHOT SD1400 IS DIGITAL ELPH ($229) can make sure that race moments get captured.usa.canon.com

The BROOKS NIGHTLIFE MESH HAT ($24) is reflective all around so you stay visible in the unfamiliar terrain of a new city.brooks.com

FRS ALL-NATURAL ENERGY CHEWS ($20 for a bag of 30) are a tasty and portable postworkout snack made with energy-producing quercetin and nothing artificial.frs.com

If you aren't happy with the taste of your gym's water, the built-in filter of the CAMELBAK GROOVE BOTTLE ($25) removes chlorine and other chemicals while you sip through the straw.camelbak.com

The OUTGO MICRONET ULTRACOMPACT MICROFIBER TOWEL ($20 to $25) packs small but absorbs five times its weight in water.mcnett.com

When there isn't time for a shower, NATHAN'S POWER SHOWER WIPES ($4 for 10 pack) will get the sweat off and refresh your skin with a citrus scent. Just beware: It usually takes three wipes to get clean.nathansports.com

Have an item that must be in your bag when you travel? Tell us in the comments below.